Cannot export SSH public key

Felix E. Klee felix.klee at inka.de
Wed Dec 27 13:40:40 CET 2023


Thanks for pointing out that the signature key and the authentication
keys are identical:

    $ gpg --card-status
    […]
    Signature key ....: 7A0F E73D DB74 4F0F 9734  1DA7 1BE3 49D1 1B6E
    D589
          created ....: 2023-06-29 03:50:43
    Encryption key....: DBBD 3239 D0F1 4326 808D  FC8F 7CC0 2D68 D2E3
    1736
          created ....: 2023-06-29 03:50:43
    Authentication key: 7A0F E73D DB74 4F0F 9734  1DA7 1BE3 49D1 1B6E
    D589
          created ....: 2023-06-29 03:50:43
    […]
    sec>  rsa4096/1BE349D11B6ED589  created: 2023-06-29  expires: never
                                    card-no: 0006 18698015
    ssb>  rsa4096/7CC02D68D2E31736  created: 2023-06-29  expires: never
                                    card-no: 0006 18698015
    ssb#  rsa4096/32B106F6877CC64B  created: 2023-11-22  expires: never

At the same time, here the key IDs are different:

    $ gpg --list-keys --keyid-format LONG yubikey at f76.eu
    pub   rsa4096/1BE349D11B6ED589 2023-06-29 [SC]
          7A0FE73DDB744F0F97341DA71BE349D11B6ED589
    uid                 [ultimate] Felix E. Klee (YubiKey) <yubikey at f76.eu>
    sub   rsa4096/7CC02D68D2E31736 2023-06-29 [E]
    sub   rsa4096/32B106F6877CC64B 2023-11-22 [A]

How does that go together?

I thought the long key ID is the last 16 characters of the fingerprint.
And the fingerprint is a 40 character hash of the public (or private?)
key.



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